diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 4ac53f6302f..e06ee851264 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -2544,10 +2544,7 @@ fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { let obligation = Obligation::new(self.tcx, ObligationCause::dummy(), param_env, cleaned_pred); - // We don't use `InferCtxt::predicate_may_hold` because that - // will re-run predicates that overflow locally, which ends up - // taking a really long time to compute. - self.evaluate_obligation(&obligation).map_or(false, |eval| eval.may_apply()) + self.predicate_may_hold(&obligation) }) } diff --git a/src/test/ui/traits/predicate_can_apply-hang.rs b/src/test/ui/traits/predicate_can_apply-hang.rs deleted file mode 100644 index 5f01645da52..00000000000 --- a/src/test/ui/traits/predicate_can_apply-hang.rs +++ /dev/null @@ -1,6 +0,0 @@ -fn f(x: Vec<[[[B; 1]; 1]; 1]>) -> impl PartialEq { - //~^ ERROR can't compare `Vec<[[[B; 1]; 1]; 1]>` with `B` - x -} - -fn main() {} diff --git a/src/test/ui/traits/predicate_can_apply-hang.stderr b/src/test/ui/traits/predicate_can_apply-hang.stderr deleted file mode 100644 index 49fe63b412a..00000000000 --- a/src/test/ui/traits/predicate_can_apply-hang.stderr +++ /dev/null @@ -1,21 +0,0 @@ -error[E0277]: can't compare `Vec<[[[B; 1]; 1]; 1]>` with `B` - --> $DIR/predicate_can_apply-hang.rs:1:38 - | -LL | fn f(x: Vec<[[[B; 1]; 1]; 1]>) -> impl PartialEq { - | ^^^^^^^^^^^^^^^^^ no implementation for `Vec<[[[B; 1]; 1]; 1]> == B` -LL | -LL | x - | - return type was inferred to be `Vec<[[[B; 1]; 1]; 1]>` here - | - = help: the trait `PartialEq` is not implemented for `Vec<[[[B; 1]; 1]; 1]>` - = help: the following other types implement trait `PartialEq`: - as PartialEq>> - as PartialEq<&[U; N]>> - as PartialEq<&[U]>> - as PartialEq<&mut [U]>> - as PartialEq<[U; N]>> - as PartialEq<[U]>> - -error: aborting due to previous error - -For more information about this error, try `rustc --explain E0277`.